US8544563B2 - Oil well perforators - Google Patents

Oil well perforators Download PDF

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Publication number
US8544563B2
US8544563B2 US12/527,261 US52726108A US8544563B2 US 8544563 B2 US8544563 B2 US 8544563B2 US 52726108 A US52726108 A US 52726108A US 8544563 B2 US8544563 B2 US 8544563B2
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Prior art keywords
liner
reactive
metals
oil
liner according
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US12/527,261
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US20100096136A1 (en
Inventor
Brian Bourne
Nathan G Clark
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Geodynamics Inc
Wells Fargo Bank NA
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Qinetiq Ltd
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PTAB case IPR2016-01850 filed (Final Written Decision) litigation Critical https://portal.unifiedpatents.com/ptab/case/IPR2016-01850 Petitioner: "Unified Patents PTAB Data" by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License.
US case filed in Texas Eastern District Court litigation https://portal.unifiedpatents.com/litigation/Texas%20Eastern%20District%20Court/case/2%3A16-cv-00697 Source: District Court Jurisdiction: Texas Eastern District Court "Unified Patents Litigation Data" by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License.
US case filed in Court of Appeals for the Federal Circuit litigation https://portal.unifiedpatents.com/litigation/Court%20of%20Appeals%20for%20the%20Federal%20Circuit/case/2018-1918 Source: Court of Appeals for the Federal Circuit Jurisdiction: Court of Appeals for the Federal Circuit "Unified Patents Litigation Data" by Unified Patents is licensed under a Creative Commons Attribution 4.0 International License.
First worldwide family litigation filed litigation https://patents.darts-ip.com/?family=37908925&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US8544563(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Qinetiq Ltd filed Critical Qinetiq Ltd
Assigned to QINETIQ LIMITED reassignment QINETIQ LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOURNE, BRIAN, CLARK, NATHAN GARRETT, GEODYAMICS INCORPORATED
Assigned to QINETIQ LIMITED reassignment QINETIQ LIMITED RE-RECORD TO CORRECT THE NAME OF THE THIRD ASSIGNOR, PREVIOUSLY RECORDED ON REEL 023301 FRAME 0395. Assignors: BOURNE, BRIAN, CLARK, NATHAN GARRETT, GEODYNAMICS INCORPORATED
Publication of US20100096136A1 publication Critical patent/US20100096136A1/en
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Assigned to GEODYNAMICS, INC. reassignment GEODYNAMICS, INC. LICENSE (SEE DOCUMENT FOR DETAILS). Assignors: QINETIQ LIMITED
Assigned to GEODYNAMICS, INC. reassignment GEODYNAMICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: QINETIQ LIMITED
Assigned to GEODYNAMICS, INC. reassignment GEODYNAMICS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: QINETIQ LIMITED
Assigned to GEODYNAMICS, INC. reassignment GEODYNAMICS, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: QINETIQ LIMITED
Assigned to WELLS FARGO BANK, NATIONAL ASSOCIATION reassignment WELLS FARGO BANK, NATIONAL ASSOCIATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OIL STATES INTERNATIONAL, INC.
Active legal-status Critical Current
Adjusted expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • F42B1/02—Shaped or hollow charges
    • F42B1/032—Shaped or hollow charges characterised by the material of the liner

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Earth Drilling (AREA)
  • Lubricants (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
US12/527,261 2007-02-20 2008-02-18 Oil well perforators Active 2029-03-26 US8544563B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0703244.4A GB0703244D0 (en) 2007-02-20 2007-02-20 Improvements in and relating to oil well perforators
GB0703244.4 2007-02-20
PCT/GB2008/000546 WO2008102110A1 (fr) 2007-02-20 2008-02-18 Améliorations apportées aux et concernant des perforateurs de puits de pétrole

Publications (2)

Publication Number Publication Date
US20100096136A1 US20100096136A1 (en) 2010-04-22
US8544563B2 true US8544563B2 (en) 2013-10-01

Family

ID=37908925

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/527,261 Active 2029-03-26 US8544563B2 (en) 2007-02-20 2008-02-18 Oil well perforators

Country Status (9)

Country Link
US (1) US8544563B2 (fr)
EP (3) EP3144630B1 (fr)
CN (1) CN101680733B (fr)
AU (1) AU2008217645B2 (fr)
BR (1) BRPI0807622A2 (fr)
CA (1) CA2678697C (fr)
GB (1) GB0703244D0 (fr)
MX (1) MX2009008816A (fr)
WO (1) WO2008102110A1 (fr)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120234194A1 (en) * 2010-03-09 2012-09-20 Halliburton Energy Services, Inc. Shaped Charge Liner Comprised of Reactive Materials
US8807003B2 (en) 2009-07-01 2014-08-19 Halliburton Energy Services, Inc. Perforating gun assembly and method for controlling wellbore pressure regimes during perforating
US9644460B2 (en) 2008-12-01 2017-05-09 Geodynamics, Inc. Method for the enhancement of injection activities and stimulation of oil and gas production
US9862027B1 (en) 2017-01-12 2018-01-09 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
WO2018177733A1 (fr) 2017-03-28 2018-10-04 Dynaenergetics Gmbh & Co. Kg Charge profilée avec pastille d'amorce explosive autonome et comprimée
US10151569B2 (en) * 2013-02-05 2018-12-11 Halliburton Energy Services, Inc. Initiator having an explosive substance of a secondary explosive
WO2018234013A1 (fr) 2017-06-23 2018-12-27 Dynaenergetics Gmbh & Co. Kg Revêtement de charge creuse, procédé pour sa fabrication et charge creuse l'incorporant
US20190063885A1 (en) * 2014-09-03 2019-02-28 Halliburton Energy Services, Inc. Perforating systems with insensitive high explosive
WO2019052927A1 (fr) 2017-09-14 2019-03-21 Dynaenergetics Gmbh & Co. Kg Chemisage de charge creuse, charge creuse pour opérations de puits de forage à haute température et procédé de perforation d'un puits de forage l'utilisant
US10689955B1 (en) 2019-03-05 2020-06-23 SWM International Inc. Intelligent downhole perforating gun tube and components
US10704867B2 (en) 2010-07-29 2020-07-07 Qinetiq Limited Oil well perforators
US10746002B2 (en) 2014-09-03 2020-08-18 Halliburton Energy Services, Inc. Perforating systems with insensitive high explosive
US11078762B2 (en) 2019-03-05 2021-08-03 Swm International, Llc Downhole perforating gun tube and components
US11255168B2 (en) 2020-03-30 2022-02-22 DynaEnergetics Europe GmbH Perforating system with an embedded casing coating and erosion protection liner
US11268376B1 (en) 2019-03-27 2022-03-08 Acuity Technical Designs, LLC Downhole safety switch and communication protocol
US11378363B2 (en) 2018-06-11 2022-07-05 DynaEnergetics Europe GmbH Contoured liner for a rectangular slotted shaped charge
US11492877B2 (en) 2017-11-29 2022-11-08 DynaEnergetics Europe GmbH Closure member and encapsulated slotted shaped charge with closure member
USD981345S1 (en) 2020-11-12 2023-03-21 DynaEnergetics Europe GmbH Shaped charge casing
US11619119B1 (en) 2020-04-10 2023-04-04 Integrated Solutions, Inc. Downhole gun tube extension

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090078420A1 (en) * 2007-09-25 2009-03-26 Schlumberger Technology Corporation Perforator charge with a case containing a reactive material
US8726995B2 (en) * 2008-12-01 2014-05-20 Geodynamics, Inc. Method for the enhancement of dynamic underbalanced systems and optimization of gun weight
US9080431B2 (en) 2008-12-01 2015-07-14 Geodynamics, Inc. Method for perforating a wellbore in low underbalance systems
US8245770B2 (en) * 2008-12-01 2012-08-21 Geodynamics, Inc. Method for perforating failure-prone formations
US8336437B2 (en) * 2009-07-01 2012-12-25 Halliburton Energy Services, Inc. Perforating gun assembly and method for controlling wellbore pressure regimes during perforating
WO2011159305A1 (fr) 2010-06-17 2011-12-22 Halliburton Energy Services, Inc. Revêtement de matière pulvérulente à haute densité
US8734960B1 (en) 2010-06-17 2014-05-27 Halliburton Energy Services, Inc. High density powdered material liner
US8701767B2 (en) 2010-12-28 2014-04-22 Schlumberger Technology Corporation Boron shaped charge
US8616130B2 (en) * 2011-01-19 2013-12-31 Raytheon Company Liners for warheads and warheads having improved liners
CN102182432A (zh) * 2011-05-17 2011-09-14 大庆石油管理局 一种二次爆炸释能药型罩
AU2013243980A1 (en) 2012-01-13 2014-08-28 Los Alamos National Security, Llc Explosive assembly and method
US10077606B2 (en) 2013-03-27 2018-09-18 Halliburton Energy Services, Inc. Methods of mitigating bituminous material adhesion using nano-particles
US10077636B2 (en) 2013-03-27 2018-09-18 Halliburton Energy Services, Inc. Use of nanoparticles in cleaning well bores
US10294767B2 (en) 2013-07-15 2019-05-21 Triad National Security, Llc Fluid transport systems for use in a downhole explosive fracturing system
WO2015009749A1 (fr) 2013-07-15 2015-01-22 Los Alamos National Security, Llc Tubages utilisables dans un système de fracturation de la roche dans un trou de forage
US10273792B2 (en) 2013-07-15 2019-04-30 Triad National Security, Llc Multi-stage geologic fracturing
CN103772078B (zh) * 2014-02-11 2016-02-17 中国工程物理研究院化工材料研究所 含能高分子表面改性铝粉及其制备方法
WO2015126375A1 (fr) * 2014-02-19 2015-08-27 Halliburton Energy Services, Inc. Explosifs de co-cristal pour des opérations de fond de trou à haute température
WO2015152934A1 (fr) * 2014-04-04 2015-10-08 Halliburton Energy Services, Inc. Outils de coupe de fond utilisant un matériau énergisant à deux étages et leurs procédés d'utilisation
CN103962553A (zh) * 2014-04-30 2014-08-06 沈阳理工大学 一种释热材料及其制备方法
DE102014014332B3 (de) * 2014-10-01 2016-03-17 TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH Vorrichtung und Verfahren zur kontrollierten Splitterbildung mittels temperaturaktivierbarer Kerbladungen
CN104311375B (zh) * 2014-10-09 2017-02-15 西安近代化学研究所 一种聚叠氮缩水甘油醚改性微纳米锆复合粒子的制备方法
CN104895534A (zh) * 2015-04-10 2015-09-09 宁波圣菲机械制造有限公司 一种射孔弹及其制作方法
CN105642880B (zh) * 2016-01-25 2018-02-13 中北大学 一种以微纳米铝热剂为材料的含能药型罩
US9725993B1 (en) * 2016-10-13 2017-08-08 Geodynamics, Inc. Constant entrance hole perforating gun system and method
CN106761599A (zh) * 2016-12-24 2017-05-31 中石化石油工程技术服务有限公司 一种提高孔道导流能力的射孔弹
US11661824B2 (en) 2018-05-31 2023-05-30 DynaEnergetics Europe GmbH Autonomous perforating drone
WO2021078676A1 (fr) * 2019-10-24 2021-04-29 The European Union, Represented By The European Commission Composition de simulation d'un composé explosif
CN113134603B (zh) * 2021-03-12 2023-06-13 西安物华巨能爆破器材有限责任公司 一种药型罩用配方及油气井射流孔道压裂用射孔弹

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Publication number Priority date Publication date Assignee Title
GB839872A (en) 1956-01-04 1960-06-29 Schlumberger Prospection Improvements in or relating to hollow explosive charges
US2972948A (en) 1952-09-16 1961-02-28 Raymond H Kray Shaped charge projectile
US3675575A (en) 1969-05-23 1972-07-11 Us Navy Coruscative shaped charge having improved jet characteristics
DE2306872A1 (de) 1973-02-13 1974-08-15 Hans Loeckmann Explosivstoff-formkoerper mit pyrometall
US5212343A (en) 1990-08-27 1993-05-18 Martin Marietta Corporation Water reactive method with delayed explosion
GB2295664A (en) 1994-12-03 1996-06-05 Alford Sidney C Apparatus for explosive ordnance disposal
US6083615A (en) 1995-12-22 2000-07-04 Hughes Electronics Corporation Structure bonded with an electrically conductive adhesive
US6371219B1 (en) 2000-05-31 2002-04-16 Halliburton Energy Services, Inc. Oilwell perforator having metal loaded polymer matrix molded liner and case
US20020112564A1 (en) 2000-02-07 2002-08-22 Leidel David J. High performance powdered metal mixtures for shaped charge liners
US6494139B1 (en) 1990-01-09 2002-12-17 Qinetiq Limited Hole boring charge assembly
US20030037692A1 (en) 2001-08-08 2003-02-27 Liqing Liu Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications
US20030037693A1 (en) 2000-05-20 2003-02-27 Wendt Clarence W. Sintered tungsten liners for shaped charges
EP1348683A2 (fr) 2002-03-28 2003-10-01 Alliant Techsystems Inc. Matériaux réactives de densitée supérieure, extrudables à température basse
US20050011395A1 (en) * 2003-05-27 2005-01-20 Surface Treatment Technologies, Inc. Reactive shaped charges and thermal spray methods of making same
WO2005035939A1 (fr) 2003-10-10 2005-04-21 Qinetiq Limited Perfectionnements relatifs a des perforateurs de puits de petrole
US20060266551A1 (en) * 2005-05-25 2006-11-30 Schlumberger Technology Corporation Shaped Charges for Creating Enhanced Perforation Tunnel in a Well Formation
US7278354B1 (en) 2003-05-27 2007-10-09 Surface Treatment Technologies, Inc. Shock initiation devices including reactive multilayer structures

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US5083615A (en) * 1990-01-26 1992-01-28 The Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College Aluminum alkyls used to create multiple fractures
US5567906B1 (en) * 1995-05-15 1998-06-09 Western Atlas Int Inc Tungsten enhanced liner for a shaped charge
DE102005059934A1 (de) 2004-12-13 2006-08-24 Dynaenergetics Gmbh & Co. Kg Hohlladungseinlagen aus Pulvermetallmischungen

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US3235005A (en) 1956-01-04 1966-02-15 Schlumberger Prospection Shaped explosive charge devices
GB839872A (en) 1956-01-04 1960-06-29 Schlumberger Prospection Improvements in or relating to hollow explosive charges
US3675575A (en) 1969-05-23 1972-07-11 Us Navy Coruscative shaped charge having improved jet characteristics
DE2306872A1 (de) 1973-02-13 1974-08-15 Hans Loeckmann Explosivstoff-formkoerper mit pyrometall
US6494139B1 (en) 1990-01-09 2002-12-17 Qinetiq Limited Hole boring charge assembly
US5212343A (en) 1990-08-27 1993-05-18 Martin Marietta Corporation Water reactive method with delayed explosion
GB2295664A (en) 1994-12-03 1996-06-05 Alford Sidney C Apparatus for explosive ordnance disposal
US6083615A (en) 1995-12-22 2000-07-04 Hughes Electronics Corporation Structure bonded with an electrically conductive adhesive
US20020112564A1 (en) 2000-02-07 2002-08-22 Leidel David J. High performance powdered metal mixtures for shaped charge liners
US20030037693A1 (en) 2000-05-20 2003-02-27 Wendt Clarence W. Sintered tungsten liners for shaped charges
US6371219B1 (en) 2000-05-31 2002-04-16 Halliburton Energy Services, Inc. Oilwell perforator having metal loaded polymer matrix molded liner and case
US20030037692A1 (en) 2001-08-08 2003-02-27 Liqing Liu Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications
EP1348683A2 (fr) 2002-03-28 2003-10-01 Alliant Techsystems Inc. Matériaux réactives de densitée supérieure, extrudables à température basse
US20050011395A1 (en) * 2003-05-27 2005-01-20 Surface Treatment Technologies, Inc. Reactive shaped charges and thermal spray methods of making same
US7278354B1 (en) 2003-05-27 2007-10-09 Surface Treatment Technologies, Inc. Shock initiation devices including reactive multilayer structures
US7278353B2 (en) 2003-05-27 2007-10-09 Surface Treatment Technologies, Inc. Reactive shaped charges and thermal spray methods of making same
WO2005035939A1 (fr) 2003-10-10 2005-04-21 Qinetiq Limited Perfectionnements relatifs a des perforateurs de puits de petrole
US8220394B2 (en) * 2003-10-10 2012-07-17 Qinetiq Limited Oil well perforators
US20060266551A1 (en) * 2005-05-25 2006-11-30 Schlumberger Technology Corporation Shaped Charges for Creating Enhanced Perforation Tunnel in a Well Formation

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Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9644460B2 (en) 2008-12-01 2017-05-09 Geodynamics, Inc. Method for the enhancement of injection activities and stimulation of oil and gas production
US10337310B2 (en) 2008-12-01 2019-07-02 Geodynamics, Inc. Method for the enhancement and stimulation of oil and gas production in shales
US8807003B2 (en) 2009-07-01 2014-08-19 Halliburton Energy Services, Inc. Perforating gun assembly and method for controlling wellbore pressure regimes during perforating
US20120234194A1 (en) * 2010-03-09 2012-09-20 Halliburton Energy Services, Inc. Shaped Charge Liner Comprised of Reactive Materials
US9617194B2 (en) 2010-03-09 2017-04-11 Halliburton Energy Services, Inc. Shaped charge liner comprised of reactive materials
US8794153B2 (en) * 2010-03-09 2014-08-05 Halliburton Energy Services, Inc. Shaped charge liner comprised of reactive materials
US10704867B2 (en) 2010-07-29 2020-07-07 Qinetiq Limited Oil well perforators
US11112221B2 (en) 2010-07-29 2021-09-07 Qinetiq Limited Oil well perforators
US10151569B2 (en) * 2013-02-05 2018-12-11 Halliburton Energy Services, Inc. Initiator having an explosive substance of a secondary explosive
US10746002B2 (en) 2014-09-03 2020-08-18 Halliburton Energy Services, Inc. Perforating systems with insensitive high explosive
US10677572B2 (en) * 2014-09-03 2020-06-09 Halliburton Energy Services, Inc. Perforating systems with insensitive high explosive
US20190063885A1 (en) * 2014-09-03 2019-02-28 Halliburton Energy Services, Inc. Perforating systems with insensitive high explosive
WO2018130369A1 (fr) 2017-01-12 2018-07-19 Dynaenergetics Gmbh & Co. Kg Revêtement de charge creuse et charge creuse comportant ledit revêtement
US10376955B2 (en) 2017-01-12 2019-08-13 Dynaenergetics Gmbh & Co. Kg Shaped charge liner and shaped charge incorporating same
WO2018130368A1 (fr) 2017-01-12 2018-07-19 Dynaenergetics Gmbh & Co. Kg Revêtement de charge creuse, procédé pour sa fabrication et charge creuse l'incorporant
US9862027B1 (en) 2017-01-12 2018-01-09 Dynaenergetics Gmbh & Co. Kg Shaped charge liner, method of making same, and shaped charge incorporating same
WO2018177733A1 (fr) 2017-03-28 2018-10-04 Dynaenergetics Gmbh & Co. Kg Charge profilée avec pastille d'amorce explosive autonome et comprimée
WO2018234013A1 (fr) 2017-06-23 2018-12-27 Dynaenergetics Gmbh & Co. Kg Revêtement de charge creuse, procédé pour sa fabrication et charge creuse l'incorporant
US10739115B2 (en) 2017-06-23 2020-08-11 DynaEnergetics Europe GmbH Shaped charge liner, method of making same, and shaped charge incorporating same
US11340047B2 (en) * 2017-09-14 2022-05-24 DynaEnergetics Europe GmbH Shaped charge liner, shaped charge for high temperature wellbore operations and method of perforating a wellbore using same
WO2019052927A1 (fr) 2017-09-14 2019-03-21 Dynaenergetics Gmbh & Co. Kg Chemisage de charge creuse, charge creuse pour opérations de puits de forage à haute température et procédé de perforation d'un puits de forage l'utilisant
US11492877B2 (en) 2017-11-29 2022-11-08 DynaEnergetics Europe GmbH Closure member and encapsulated slotted shaped charge with closure member
US11378363B2 (en) 2018-06-11 2022-07-05 DynaEnergetics Europe GmbH Contoured liner for a rectangular slotted shaped charge
US11078762B2 (en) 2019-03-05 2021-08-03 Swm International, Llc Downhole perforating gun tube and components
US10689955B1 (en) 2019-03-05 2020-06-23 SWM International Inc. Intelligent downhole perforating gun tube and components
US11624266B2 (en) 2019-03-05 2023-04-11 Swm International, Llc Downhole perforating gun tube and components
US11976539B2 (en) 2019-03-05 2024-05-07 Swm International, Llc Downhole perforating gun tube and components
US11268376B1 (en) 2019-03-27 2022-03-08 Acuity Technical Designs, LLC Downhole safety switch and communication protocol
US11686195B2 (en) 2019-03-27 2023-06-27 Acuity Technical Designs, LLC Downhole switch and communication protocol
US11255168B2 (en) 2020-03-30 2022-02-22 DynaEnergetics Europe GmbH Perforating system with an embedded casing coating and erosion protection liner
US11619119B1 (en) 2020-04-10 2023-04-04 Integrated Solutions, Inc. Downhole gun tube extension
USD981345S1 (en) 2020-11-12 2023-03-21 DynaEnergetics Europe GmbH Shaped charge casing

Also Published As

Publication number Publication date
EP2113066A1 (fr) 2009-11-04
CA2678697C (fr) 2015-11-03
MX2009008816A (es) 2009-08-31
GB0703244D0 (en) 2007-03-28
WO2008102110A1 (fr) 2008-08-28
EP3144630A1 (fr) 2017-03-22
AU2008217645A1 (en) 2008-08-28
EP3144629B1 (fr) 2020-01-29
AU2008217645A2 (en) 2010-01-07
CA2678697A1 (fr) 2008-08-28
US20100096136A1 (en) 2010-04-22
CN101680733A (zh) 2010-03-24
EP3144630B1 (fr) 2020-01-15
BRPI0807622A2 (pt) 2014-06-03
EP3144629A1 (fr) 2017-03-22
CN101680733B (zh) 2013-08-14
AU2008217645B2 (en) 2013-04-18

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Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BOURNE, BRIAN;CLARK, NATHAN GARRETT;GEODYAMICS INCORPORATED;SIGNING DATES FROM 20090413 TO 20090908;REEL/FRAME:023301/0395

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